There has been a minor release of FITS v.1.5.1. There are no functional changes in this release. There have been updates to some dependencies, some of which address security vulnerabilities. A couple of minor security updates remain which will require a greater amount of effort and will be included in a future release.
The latest source code is available on GitHub here. The downloads page only provides executable code and JavaDoc.
There are plans to have a community development sprint sometime in February. Please be in touch if you would like to take part.